~ubuntu-branches/ubuntu/maverick/gimp/maverick-updates

/* LIBGIMP - The GIMP Library

 * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball

 *

 * gimppatheditor.c

 * Copyright (C) 1999-2004 Michael Natterer <mitch@gimp.org>

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Library General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library; if not, write to the

 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

 * Boston, MA 02111-1307, USA.

 */

#include "config.h"

#include <string.h>

#include <gtk/gtk.h>

#include "libgimpbase/gimpbase.h"

#include "gimpwidgetstypes.h"

#undef GIMP_DISABLE_DEPRECATED

#include "gimpfileentry.h"

#include "gimppatheditor.h"

#include "libgimp/libgimp-intl.h"

enum

{

  PATH_CHANGED,

  WRITABLE_CHANGED,

  LAST_SIGNAL

};

enum

{

  COLUMN_UTF8,

  COLUMN_DIRECTORY,

  COLUMN_WRITABLE,

  NUM_COLUMNS

};

static void   gimp_path_editor_new_clicked        (GtkWidget           *widget,

                                                   GimpPathEditor      *editor);

static void   gimp_path_editor_move_clicked       (GtkWidget           *widget,

                                                   GimpPathEditor      *editor);

static void   gimp_path_editor_delete_clicked     (GtkWidget           *widget,

                                                   GimpPathEditor      *editor);

static void   gimp_path_editor_file_entry_changed (GtkWidget           *widget,

                                                   GimpPathEditor      *editor);

static void   gimp_path_editor_selection_changed  (GtkTreeSelection    *sel,

                                                   GimpPathEditor      *editor);

static void   gimp_path_editor_writable_toggled   (GtkCellRendererToggle *toggle,

                                                   gchar               *path_str,

                                                   GimpPathEditor      *editor);

G_DEFINE_TYPE (GimpPathEditor, gimp_path_editor, GTK_TYPE_VBOX)

#define parent_class gimp_path_editor_parent_class

static guint gimp_path_editor_signals[LAST_SIGNAL] = { 0 };

static void

gimp_path_editor_class_init (GimpPathEditorClass *klass)

{

  /**

   * GimpPathEditor::path-changed:

   *

   * This signal is emitted whenever the user adds, deletes, modifies

   * or reorders an element of the search path.

   **/

  gimp_path_editor_signals[PATH_CHANGED] =

    g_signal_new ("path-changed",

                  G_TYPE_FROM_CLASS (klass),

                  G_SIGNAL_RUN_FIRST,

                  G_STRUCT_OFFSET (GimpPathEditorClass, path_changed),

                  NULL, NULL,

                  g_cclosure_marshal_VOID__VOID,

                  G_TYPE_NONE, 0);

  /**

   * GimpPathEditor::writable-changed:

   *

   * This signal is emitted whenever the "writable" column of a directory

   * is changed, either by the user clicking on it or by calling

   * gimp_path_editor_set_dir_writable().

   **/

  gimp_path_editor_signals[WRITABLE_CHANGED] =

    g_signal_new ("writable-changed",

                  G_TYPE_FROM_CLASS (klass),

                  G_SIGNAL_RUN_FIRST,

                  G_STRUCT_OFFSET (GimpPathEditorClass, writable_changed),

                  NULL, NULL,

                  g_cclosure_marshal_VOID__VOID,

                  G_TYPE_NONE, 0);

  klass->path_changed     = NULL;

  klass->writable_changed = NULL;

}

static void

gimp_path_editor_init (GimpPathEditor *editor)

{

  GtkWidget         *button_box;

  GtkWidget         *button;

  GtkWidget         *image;

  GtkWidget         *scrolled_window;

  GtkWidget         *tv;

  GtkTreeViewColumn *col;

  GtkCellRenderer   *renderer;

  editor->file_entry = NULL;

  editor->sel_path   = NULL;

  editor->num_items  = 0;

  editor->upper_hbox = gtk_hbox_new (FALSE, 2);

  gtk_box_pack_start (GTK_BOX (editor), editor->upper_hbox, FALSE, TRUE, 0);

  gtk_widget_show (editor->upper_hbox);

  button_box = gtk_hbox_new (TRUE, 0);

  gtk_box_pack_start (GTK_BOX (editor->upper_hbox), button_box, FALSE, TRUE, 0);

  gtk_widget_show (button_box);

  editor->new_button = button = gtk_button_new ();

  gtk_box_pack_start (GTK_BOX (button_box), button, TRUE, TRUE, 0);

  gtk_widget_show (button);

  image = gtk_image_new_from_stock (GTK_STOCK_NEW, GTK_ICON_SIZE_BUTTON);

  gtk_container_add (GTK_CONTAINER (button), image);

  gtk_widget_show (image);

  g_signal_connect (button, "clicked",

                    G_CALLBACK (gimp_path_editor_new_clicked),

                    editor);

  editor->up_button = button = gtk_button_new ();

  gtk_widget_set_sensitive (button, FALSE);

  gtk_box_pack_start (GTK_BOX (button_box), button, TRUE, TRUE, 0);

  gtk_widget_show (button);

  image = gtk_image_new_from_stock (GTK_STOCK_GO_UP, GTK_ICON_SIZE_BUTTON);

  gtk_container_add (GTK_CONTAINER (button), image);

  gtk_widget_show (image);

  g_signal_connect (button, "clicked",

                    G_CALLBACK (gimp_path_editor_move_clicked),

                    editor);

  editor->down_button = button = gtk_button_new ();

  gtk_widget_set_sensitive (button, FALSE);

  gtk_box_pack_start (GTK_BOX (button_box), button, TRUE, TRUE, 0);

  gtk_widget_show (button);

  image = gtk_image_new_from_stock (GTK_STOCK_GO_DOWN, GTK_ICON_SIZE_BUTTON);

  gtk_container_add (GTK_CONTAINER (button), image);

  gtk_widget_show (image);

  g_signal_connect (button, "clicked",

                    G_CALLBACK (gimp_path_editor_move_clicked),

                    editor);

  editor->delete_button = button = gtk_button_new ();

  gtk_widget_set_sensitive (button, FALSE);

  gtk_box_pack_start (GTK_BOX (button_box), button, TRUE, TRUE, 0);

  gtk_widget_show (button);

  image = gtk_image_new_from_stock (GTK_STOCK_DELETE, GTK_ICON_SIZE_BUTTON);

  gtk_container_add (GTK_CONTAINER (button), image);

  gtk_widget_show (image);

  g_signal_connect (button, "clicked",

                    G_CALLBACK (gimp_path_editor_delete_clicked),

                    editor);

  scrolled_window = gtk_scrolled_window_new (NULL, NULL);

  gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),

                                       GTK_SHADOW_IN);

  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),

                                  GTK_POLICY_AUTOMATIC,

                                  GTK_POLICY_ALWAYS);

  gtk_box_pack_start (GTK_BOX (editor), scrolled_window, TRUE, TRUE, 2);

  gtk_widget_show (scrolled_window);

  editor->dir_list = gtk_list_store_new (NUM_COLUMNS,

                                         G_TYPE_STRING,

                                         G_TYPE_STRING,

                                         G_TYPE_BOOLEAN);

  tv = gtk_tree_view_new_with_model (GTK_TREE_MODEL (editor->dir_list));

  g_object_unref (editor->dir_list);

  renderer = gtk_cell_renderer_toggle_new ();

  g_signal_connect (renderer, "toggled",

                    G_CALLBACK (gimp_path_editor_writable_toggled),

                    editor);

  editor->writable_column = col = gtk_tree_view_column_new ();

  gtk_tree_view_column_set_title (col, _("Writable"));

  gtk_tree_view_column_pack_start (col, renderer, FALSE);

  gtk_tree_view_column_add_attribute (col, renderer, "active", COLUMN_WRITABLE);

  gtk_tree_view_append_column (GTK_TREE_VIEW (tv), col);

  gtk_tree_view_column_set_visible (col, FALSE);

  gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tv),

                                               -1, _("Folder"),

                                               gtk_cell_renderer_text_new (),

                                               "text", COLUMN_UTF8,

                                               NULL);

  gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (tv), TRUE);

  gtk_container_add (GTK_CONTAINER (scrolled_window), tv);

  gtk_widget_show (tv);

  editor->sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (tv));

  g_signal_connect (editor->sel, "changed",

                    G_CALLBACK (gimp_path_editor_selection_changed),

                    editor);

}

/**

 * gimp_path_editor_new:

 * @title: The title of the #GtkFileChooser dialog which can be popped up.

 * @path:  The initial search path.

 *

 * Creates a new #GimpPathEditor widget.

 *

 * The elements of the initial search path must be separated with the

 * #G_SEARCHPATH_SEPARATOR character.

 *

 * Returns: A pointer to the new #GimpPathEditor widget.

 **/

GtkWidget *

gimp_path_editor_new (const gchar *title,

                      const gchar *path)

{

  GimpPathEditor *editor;

  g_return_val_if_fail (title != NULL, NULL);

  editor = g_object_new (GIMP_TYPE_PATH_EDITOR, NULL);

  editor->file_entry = gimp_file_entry_new (title, "", TRUE, TRUE);

  gtk_widget_set_sensitive (editor->file_entry, FALSE);

  gtk_box_pack_start (GTK_BOX (editor->upper_hbox), editor->file_entry,

                      TRUE, TRUE, 0);

  gtk_widget_show (editor->file_entry);

  g_signal_connect (editor->file_entry, "filename-changed",

                    G_CALLBACK (gimp_path_editor_file_entry_changed),

                    editor);

  if (path)

    gimp_path_editor_set_path (editor, path);

  return GTK_WIDGET (editor);

}

/**

 * gimp_path_editor_get_path:

 * @editor: The path editor you want to get the search path from.

 *

 * The elements of the returned search path string are separated with the

 * #G_SEARCHPATH_SEPARATOR character.

 *

 * Note that you have to g_free() the returned string.

 *

 * Returns: The search path the user has selected in the path editor.

 **/

gchar *

gimp_path_editor_get_path (GimpPathEditor *editor)

{

  GtkTreeModel *model;

  GString      *path;

  GtkTreeIter   iter;

  gboolean      iter_valid;

  g_return_val_if_fail (GIMP_IS_PATH_EDITOR (editor), g_strdup (""));

  model = GTK_TREE_MODEL (editor->dir_list);

  path = g_string_new ("");

  for (iter_valid = gtk_tree_model_get_iter_first (model, &iter);

       iter_valid;

       iter_valid = gtk_tree_model_iter_next (model, &iter))

    {

      gchar *dir;

      gtk_tree_model_get (model, &iter,

                          COLUMN_DIRECTORY, &dir,

                          -1);

      if (path->len > 0)

        g_string_append_c (path, G_SEARCHPATH_SEPARATOR);

      g_string_append (path, dir);

      g_free (dir);

    }

  return g_string_free (path, FALSE);

}

/**

 * gimp_path_editor_set_path:

 * @editor: The path editor you want to set the search path from.

 * @path:   The new path to set.

 *

 * The elements of the initial search path must be separated with the

 * #G_SEARCHPATH_SEPARATOR character.

 **/

void

gimp_path_editor_set_path (GimpPathEditor *editor,

                           const gchar    *path)

{

  gchar *old_path;

  GList *path_list;

  GList *list;

  g_return_if_fail (GIMP_IS_PATH_EDITOR (editor));

  old_path = gimp_path_editor_get_path (editor);

  if (old_path && path && strcmp (old_path, path) == 0)

    {

      g_free (old_path);

      return;

    }

  g_free (old_path);

  path_list = gimp_path_parse (path, 16, TRUE, NULL);

  gtk_list_store_clear (editor->dir_list);

  for (list = path_list; list; list = g_list_next (list))

    {

      gchar       *directory = list->data;

      gchar       *utf8;

      GtkTreeIter  iter;

      utf8 = g_filename_to_utf8 (directory, -1, NULL, NULL, NULL);

      gtk_list_store_append (editor->dir_list, &iter);

      gtk_list_store_set (editor->dir_list, &iter,

                          COLUMN_UTF8,      utf8,

                          COLUMN_DIRECTORY, directory,

                          COLUMN_WRITABLE,  FALSE,

                          -1);

      g_free (utf8);

      editor->num_items++;

    }

  gimp_path_free (path_list);

  g_signal_emit (editor, gimp_path_editor_signals[PATH_CHANGED], 0);

}

gchar *

gimp_path_editor_get_writable_path (GimpPathEditor *editor)

{

  GtkTreeModel *model;

  GString      *path;

  GtkTreeIter   iter;

  gboolean      iter_valid;

  g_return_val_if_fail (GIMP_IS_PATH_EDITOR (editor), g_strdup (""));

  model = GTK_TREE_MODEL (editor->dir_list);

  path = g_string_new ("");

  for (iter_valid = gtk_tree_model_get_iter_first (model, &iter);

       iter_valid;

       iter_valid = gtk_tree_model_iter_next (model, &iter))

    {

      gchar    *dir;

      gboolean  dir_writable;

      gtk_tree_model_get (model, &iter,

                          COLUMN_DIRECTORY, &dir,

                          COLUMN_WRITABLE,  &dir_writable,

                          -1);

      if (dir_writable)

        {

          if (path->len > 0)

            g_string_append_c (path, G_SEARCHPATH_SEPARATOR);

          g_string_append (path, dir);

        }

      g_free (dir);

    }

  return g_string_free (path, FALSE);

}

void

gimp_path_editor_set_writable_path (GimpPathEditor *editor,

                                    const gchar    *path)

{

  GtkTreeModel *model;

  GtkTreeIter   iter;

  gboolean      iter_valid;

  GList        *path_list;

  gboolean      writable_changed = FALSE;

  g_return_if_fail (GIMP_IS_PATH_EDITOR (editor));

  gtk_tree_view_column_set_visible (editor->writable_column, TRUE);

  path_list = gimp_path_parse (path, 16, TRUE, NULL);

  model = GTK_TREE_MODEL (editor->dir_list);

  for (iter_valid = gtk_tree_model_get_iter_first (model, &iter);

       iter_valid;

       iter_valid = gtk_tree_model_iter_next (model, &iter))

    {

      gchar    *dir;

      gboolean  dir_writable;

      gboolean  new_writable = FALSE;

      gtk_tree_model_get (model, &iter,

                          COLUMN_DIRECTORY, &dir,

                          COLUMN_WRITABLE,  &dir_writable,

                          -1);

      if (g_list_find_custom (path_list, dir, (GCompareFunc) strcmp))

        new_writable = TRUE;

      g_free (dir);

      if (dir_writable != new_writable)

        {

          gtk_list_store_set (editor->dir_list, &iter,

                              COLUMN_WRITABLE, new_writable,

                              -1);

          writable_changed = TRUE;

        }

    }

  gimp_path_free (path_list);

  if (writable_changed)

    g_signal_emit (editor, gimp_path_editor_signals[WRITABLE_CHANGED], 0);

}

gboolean

gimp_path_editor_get_dir_writable (GimpPathEditor *editor,

                                   const gchar    *directory)

{

  GtkTreeModel *model;

  GtkTreeIter   iter;

  gboolean      iter_valid;

  g_return_val_if_fail (GIMP_IS_PATH_EDITOR (editor), FALSE);

  g_return_val_if_fail (directory != NULL, FALSE);

  model = GTK_TREE_MODEL (editor->dir_list);

  for (iter_valid = gtk_tree_model_get_iter_first (model, &iter);

       iter_valid;

       iter_valid = gtk_tree_model_iter_next (model, &iter))

    {

      gchar    *dir;

      gboolean  dir_writable;

      gtk_tree_model_get (model, &iter,

                          COLUMN_DIRECTORY, &dir,

                          COLUMN_WRITABLE,  &dir_writable,

                          -1);

      if (! strcmp (dir, directory))

        {

          g_free (dir);

          return dir_writable;

        }

      g_free (dir);

    }

  return FALSE;

}

void

gimp_path_editor_set_dir_writable (GimpPathEditor *editor,

                                   const gchar    *directory,

                                   gboolean        writable)

{

  GtkTreeModel *model;

  GtkTreeIter   iter;

  gboolean      iter_valid;

  g_return_if_fail (GIMP_IS_PATH_EDITOR (editor));

  g_return_if_fail (directory != NULL);

  model = GTK_TREE_MODEL (editor->dir_list);

  for (iter_valid = gtk_tree_model_get_iter_first (model, &iter);

       iter_valid;

       iter_valid = gtk_tree_model_iter_next (model, &iter))

    {

      gchar    *dir;

      gboolean  dir_writable;

      gtk_tree_model_get (model, &iter,

                          COLUMN_DIRECTORY, &dir,

                          COLUMN_WRITABLE,  &dir_writable,

                          -1);

      if (! strcmp (dir, directory) && dir_writable != writable)

        {

          gtk_list_store_set (editor->dir_list, &iter,

                              COLUMN_WRITABLE, writable ? TRUE : FALSE,

                              -1);

          g_signal_emit (editor, gimp_path_editor_signals[WRITABLE_CHANGED], 0);

          g_free (dir);

          break;

        }

      g_free (dir);

    }

}

/*  private functions  */

static void

gimp_path_editor_new_clicked (GtkWidget      *widget,

                              GimpPathEditor *editor)

{

  if (editor->sel_path)

    {

      g_signal_handlers_block_by_func (editor->sel,

                                       gimp_path_editor_selection_changed,

                                       editor);

      gtk_tree_selection_unselect_path (editor->sel, editor->sel_path);

      g_signal_handlers_unblock_by_func (editor->sel,

                                         gimp_path_editor_selection_changed,

                                         editor);

      gtk_tree_path_free (editor->sel_path);

      editor->sel_path = NULL;

    }

  gtk_widget_set_sensitive (editor->delete_button, FALSE);

  gtk_widget_set_sensitive (editor->up_button, FALSE);

  gtk_widget_set_sensitive (editor->down_button, FALSE);

  gtk_widget_set_sensitive (editor->file_entry, TRUE);

  gtk_editable_set_position

    (GTK_EDITABLE (GIMP_FILE_ENTRY (editor->file_entry)->entry), -1);

  gtk_widget_grab_focus

    (GTK_WIDGET (GIMP_FILE_ENTRY (editor->file_entry)->entry));

}

static void

gimp_path_editor_move_clicked (GtkWidget      *widget,

                               GimpPathEditor *editor)

{

  GtkTreePath  *path;

  GtkTreeModel *model;

  GtkTreeIter   iter1, iter2;

  gchar        *utf81, *utf82;

  gchar        *dir1, *dir2;

  gboolean      writable1, writable2;

  if (editor->sel_path == NULL)

    return;

  path = gtk_tree_path_copy (editor->sel_path);

  if (widget == editor->up_button)

    gtk_tree_path_prev (path);

  else

    gtk_tree_path_next (path);

  model = GTK_TREE_MODEL (editor->dir_list);

  gtk_tree_model_get_iter (model, &iter1, editor->sel_path);

  gtk_tree_model_get_iter (model, &iter2, path);

  gtk_tree_model_get (model, &iter1,

                      COLUMN_UTF8,      &utf81,

                      COLUMN_DIRECTORY, &dir1,

                      COLUMN_WRITABLE,  &writable1,

                      -1);

  gtk_tree_model_get (model, &iter2,

                      COLUMN_UTF8,      &utf82,

                      COLUMN_DIRECTORY, &dir2,

                      COLUMN_WRITABLE,  &writable2,

                      -1);

  gtk_list_store_set (editor->dir_list, &iter1,

                      COLUMN_UTF8,      utf82,

                      COLUMN_DIRECTORY, dir2,

                      COLUMN_WRITABLE,  writable2,

                      -1);

  gtk_list_store_set (editor->dir_list, &iter2,

                      COLUMN_UTF8,      utf81,

                      COLUMN_DIRECTORY, dir1,

                      COLUMN_WRITABLE,  writable1,

                      -1);

  g_free (utf81);

  g_free (utf82);

  g_free (dir2);

  g_free (dir1);

  gtk_tree_selection_select_iter (editor->sel, &iter2);

  g_signal_emit (editor, gimp_path_editor_signals[PATH_CHANGED], 0);

}

static void

gimp_path_editor_delete_clicked (GtkWidget      *widget,

                                 GimpPathEditor *editor)

{

  GtkTreeIter iter;

  gboolean    dir_writable;

  if (editor->sel_path == NULL)

    return;

  gtk_tree_model_get_iter (GTK_TREE_MODEL (editor->dir_list), &iter,

                           editor->sel_path);

  gtk_tree_model_get (GTK_TREE_MODEL (editor->dir_list), &iter,

                      COLUMN_WRITABLE, &dir_writable,

                      -1);

  gtk_list_store_remove (editor->dir_list, &iter);

  editor->num_items--;

  if (editor->num_items == 0)

    {

      gtk_tree_path_free (editor->sel_path);

      editor->sel_path = NULL;

      g_signal_handlers_block_by_func (editor->file_entry,

                                       gimp_path_editor_file_entry_changed,

                                       editor);

      gimp_file_entry_set_filename (GIMP_FILE_ENTRY (editor->file_entry), "");

      g_signal_handlers_unblock_by_func (editor->file_entry,

                                         gimp_path_editor_file_entry_changed,

                                         editor);

      gtk_widget_set_sensitive (editor->delete_button, FALSE);

      gtk_widget_set_sensitive (editor->up_button,     FALSE);

      gtk_widget_set_sensitive (editor->down_button,   FALSE);

      gtk_widget_set_sensitive (editor->file_entry,    FALSE);

    }

  else

    {

      gint *indices;

      indices = gtk_tree_path_get_indices (editor->sel_path);

      if ((indices[0] == editor->num_items) && (indices[0] > 0))

        gtk_tree_path_prev (editor->sel_path);

      gtk_tree_selection_select_path (editor->sel, editor->sel_path);

    }

  g_signal_emit (editor, gimp_path_editor_signals[PATH_CHANGED], 0);

  if (dir_writable)

    g_signal_emit (editor, gimp_path_editor_signals[WRITABLE_CHANGED], 0);

}

static void

gimp_path_editor_file_entry_changed (GtkWidget      *widget,

                                     GimpPathEditor *editor)

{

  gchar       *dir;

  gchar       *utf8;

  GtkTreeIter  iter;

  dir = gimp_file_entry_get_filename (GIMP_FILE_ENTRY (widget));

  if (strcmp (dir, "") == 0)

    {

      g_free (dir);

      return;

    }

  utf8 = g_filename_display_name (dir);

  if (editor->sel_path == NULL)

    {

      gtk_list_store_append (editor->dir_list, &iter);

      gtk_list_store_set (editor->dir_list, &iter,

                          COLUMN_UTF8,      utf8,

                          COLUMN_DIRECTORY, dir,

                          COLUMN_WRITABLE,  FALSE,

                          -1);

      editor->num_items++;

      gtk_tree_selection_select_iter (editor->sel, &iter);

    }

  else

    {

      gtk_tree_model_get_iter (GTK_TREE_MODEL (editor->dir_list), &iter,

                               editor->sel_path);

      gtk_list_store_set (editor->dir_list, &iter,

                          COLUMN_UTF8,      utf8,

                          COLUMN_DIRECTORY, dir,

                          -1);

    }

  g_free (dir);

  g_free (utf8);

  g_signal_emit (editor, gimp_path_editor_signals[PATH_CHANGED], 0);

}

static void

gimp_path_editor_selection_changed (GtkTreeSelection *sel,

                                    GimpPathEditor   *editor)

{

  GtkTreeIter  iter;

  gchar       *directory;

  gint        *indices;

  if (gtk_tree_selection_get_selected (sel, NULL, &iter))

    {

      gtk_tree_model_get (GTK_TREE_MODEL (editor->dir_list), &iter,

                          0, &directory,

                          -1);

      g_signal_handlers_block_by_func (editor->file_entry,

                                       gimp_path_editor_file_entry_changed,

                                       editor);

      gimp_file_entry_set_filename (GIMP_FILE_ENTRY (editor->file_entry),

                                    directory);

      g_signal_handlers_unblock_by_func (editor->file_entry,

                                         gimp_path_editor_file_entry_changed,

                                         editor);

      g_free (directory);

      if (editor->sel_path)

        gtk_tree_path_free (editor->sel_path);

      editor->sel_path =

        gtk_tree_model_get_path (GTK_TREE_MODEL (editor->dir_list), &iter);

      indices = gtk_tree_path_get_indices (editor->sel_path);

      gtk_widget_set_sensitive (editor->delete_button, TRUE);

      gtk_widget_set_sensitive (editor->up_button, (indices[0] > 0));

      gtk_widget_set_sensitive (editor->down_button,

                                (indices[0] < (editor->num_items - 1)));

      gtk_widget_set_sensitive (editor->file_entry, TRUE);

    }

  else

    {

      g_signal_handlers_block_by_func (sel,

                                       gimp_path_editor_selection_changed,

                                       editor);

      gtk_tree_selection_select_path (editor->sel, editor->sel_path);

      g_signal_handlers_unblock_by_func (sel,

                                         gimp_path_editor_selection_changed,

                                         editor);

    }

}

static void

gimp_path_editor_writable_toggled (GtkCellRendererToggle *toggle,

                                   gchar                 *path_str,

                                   GimpPathEditor        *editor)

{

  GtkTreePath *path;

  GtkTreeIter  iter;